CVE-2026-17033
Fixed in a distro release EPSS <1%CVSS 6.8
An authenticated attacker with Editor access or alert.instances.external:write can submit an external Alertmanager alert containing a controlled generatorURL. The attacker is authorized to create the alert, but not to execute script in another user's Grafana session. Grafana renders alert.generatorURL directly as the Alert Details See source LinkButton href without URL-scheme sanitization or a safe-protocol allowlist. The click interceptor's :// heuristic can be bypassed by placing :// inside a JavaScript comment. When a user with read access clicks See source, the browser executes attacker-controlled JavaScript in the Grafana origin with the clicking user's permissions.
Products: Grafana OSS
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | grafana-11.6 | no fix |
| Chainguard | grafana-12.1 | no fix |
| Chainguard | grafana-12.2 | no fix |
| Chainguard | grafana-12.3 | no fix |
| Chainguard | grafana-12.4 | 12.4.10-r0 |
| Chainguard | grafana-13.0 | no fix |
| Red Hat hummingbird 1 | grafana12.4 | 0:12.4.10-0.1.hum1 |
| Red Hat hummingbird 1 | grafana13.1 | 0:13.1.3-0.5.hum1 |
| Red Hat hummingbird 1 | grafana13.2 | 0:13.2.1-0.1.hum1 |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | grafana | 12.4.10-150200.3.94.3 |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | system-user-grafana | 1.0.0-150200.5.8.1 |
| SUSE Multi Linux Manager Tools SLE-15 | golang-github-prometheus-prometheus | 3.13.2-150002.3.19.1 |
| SUSE Multi Linux Manager Tools SLE-15 | grafana | 12.4.10-150002.4.27.1 |
| SUSE Multi Linux Manager Tools SLE-15 | mgr-push | 5.2.5-150002.3.12.1 |
| SUSE Multi Linux Manager Tools SLE-15 | spacecmd | 5.2.10-150002.3.15.1 |
| SUSE Multi Linux Manager Tools SLE-15 | spacewalk-client-tools | 5.2.7-150002.3.12.1 |
| SUSE Multi Linux Manager Tools SLE-15 | uyuni-tools | 5.2.17-150002.3.20.1 |
| SUSE Multi Linux Manager Tools SLE-15 | venv-salt-minion | 3006.0-150002.5.22.1 |
| SUSE Multi Linux Manager Tools SLE-Micro-5 | uyuni-tools | 5.2.17-150002.3.20.1 |
| SUSE Multi Linux Manager Tools SLE-Micro-5 | venv-salt-minion | 3006.0-150002.5.22.1 |
| Wolfi | grafana-12.3 | no fix |
| Wolfi | grafana-12.4 | 12.4.10-r0 |
| Wolfi | grafana-13.0 | no fix |
| openSUSE Leap 16.0 | grafana | 12.4.10-bp160.1.1 |
| openSUSE Tumbleweed | grafana | 12.4.10-1.1 |